Bosch Greentherm T9800 SEO160, Инструкция по установке и эксплуатации

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Problem solving
Greentherm T9800 SEO 160/199 | SECO 199 – 6 720 817 281 (2018/12) 48
Table 20
Note: If the appliance is locked for safety reasons, information is shown on the display to give more information on the problem.
Once the problem is solved, you may have to reset the error (press and hold
button for 3 seconds). To restart the appliance,
inside the appliance or in the remote control.
F7 Electronic control unit internal error. ▶ Reset error (press and hold on/off button for 3
seconds).
If the problem persists:
▶ Replace electronic control unit.
1)
F8 Electronic control unit internal error. ▶ Reset error (press and hold on/off button for 3
seconds).
If the problem persists:
▶ Replace electronic control unit.
1)
F9 Gas valve driver internal fault. ▶ Check gas valve wire connections.
1)
If the problem persists:
▶ Replace the wire connections and/or electronic
control unit.
1)
FA Gas leakage in the gas path (gas valve or gas
manifold shut-off valves). ▶ Replace the gas valve and/or gas manifold.
1)
▶ After gas valve and/or gas manifold replacement
perform gas and air tuning (

section 8.11).
1)
FC Control buttons pressed for more than 30s. ▶ Release the button.
Display shows
but without
existence of solar
thermal system.
Power demand lower than appliance minimum
output power. ▶ Increase hot water flow.
▶ increase setpoint temperature.
Display shows
and water
temperature low.
Display shows "--" Display is not communicating with Electronic
Control Unit. ▶ Reset the appliance by unplugging it for some
seconds (at least 10) and plug it back in.
▶ Replace the display and/or wire connections and/or
electronic control unit.
High pitch noise
(whistling) Combustion flame with gas in excess or lack of air. ▶ Check if gas type is correct (

section 6.7).
1)
▶ Check gas inlet pressure (

section 4.13).
1)
▶ Perform gas and air tuning (

section 8.11).
1)
Low pitch noise
with vibration
(rumbling) Combustion flame with air in excess or lack of gas. ▶ Check if gas type is correct (

section 6.7).
1)
▶ Check gas inlet pressure (

section 4.13).
1)
▶ Perform gas and air tuning (

section 8.11).
1)
1) only to be carried out by qualified contractors.
2) see temperature resistance charts in fig. 47 and 48.
Display Description Solution